Diagrams
- Circuit Diagram Page 1
- Circuit Diagram Page 2
- Circuit Diagram Page 3
- PCB Artwork
- PCB Component Layout
- Interwiring Diagram
- Front Panel
- Software Screen Capture
Zip Files
- Front Panel and Interwiring Diagram in CorelDraw format
- Software (also for Eprom Programmer Mk 2) for MS-DOS with QuickBASIC Source Code
- PCB Gerber Files
Tips
The Harris CDP6402 may be replaced with a Harris HD6402.
Parts
| Resistors | |
| R1 | 4M7 |
| R2 | 2K2 |
| R3,8 | 1K0 |
| R4 | 47K |
| R5,6,7 | 4K7 |
| Capacitors | |
| C1,2,3,4,5 | 100n |
| C6,7 | 22p |
| C8 | 2n2 |
| C9 | 10u |
| C10 | 47u |
| Semiconductors | |
| IC1 | 74HCT04 |
| IC2 | 74HCT4060 |
| IC3 | CDP6402 (Maplin QQ04E) |
| IC4 | 74LS32 |
| IC5 | 74HCT4024 |
| IC6 | 74HCT4040 |
| IC7,8,11,12,13,14 | 74LS245 |
| IC9,10 | 43256-10 or 62256-10 |
| D1,2,3 | 1N4148 |
| Miscellaneous | |
| XT1 | 2.4576MHz |
| SK1 | 9 or 25 way D connector |
| SK3 | DC INPUT |
| SW1 | Push to Make |
| SW2 | 4 pole 3 way rotary |
| SW3 and SW4 | one 4 pole 3 way rotary |
PCB, Case, knobs, wire, ribbon cable, two 28 way DIL ribbon connectors
This project, including all text, images and diagrams, is copyright 1991 - 2003 Paul Stenning. No part of this article may be reproduced in any form without prior written permission from Paul Stenning and WallyWare, inc. All details are believed to be accurate, but no liability can be accepted for any errors.
advertisement
advertisement